I am in final stages of a 5a "bottom land" pond with smaller trees cleared, and nearing $70k. This includes 2 islands, 2 1'x80' drainage pipes, an emergency spillway, and lined in 2'+ of clay. A large peninsula for fishing and a beach for swimming were nice additions. I used 8 55 gal. drums, 5 pallet condos, 4 large tractor tires, and 8 1200# round bales of haygrazer for structure. Needing clay for a building pad we ended up 20' in places. Lots of cuts and dropoffs, fish channels throughout. Will try and post pictures when wife returns next week. My cost were a little high due to a change of contractors.